Donavon Frankenreiter - Rainbow Tree Ukulele

This is the first tab for this song so i hope it catches.
The song is pretty simple. Just 4 main chords through most of the song.
I think there is a few chords missing in the chorus.. instead od a D at the
end there is something else. If anyone can figure it out, submit another tab.
Herbs

Intro 

G Bm C D      x2

Verse

G Bm C D

Chorus

G Bm C ???

Outro (Mainly persussion)

F F# G (use the bar chords for these, single muted strokes)